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Baseline characteristics for subjects
| Group | Control | Respiratory syncytial virus | Human metapneumovirus | P value |
|---|---|---|---|---|
| N | 80 | 30 | 30 | |
| Premature (<32 wk), n (%) | 40 (50) | 7 (23) | 9 (30) | NS |
| Male, n (%) | 49 (62) | 19 (63) | 15 (50) | NS |
| Age (y), mean (SD) | 1.3 (0.8) | 1.5 (1.1) | 1.9 (1.2) | NS |
| Black, n (%) | 48 (40) | 13 (43) | 14 (45) | NS |
| Hospitalized, n (%) | 76 (95) | 29 (97) | 29 (97) | NS |
